Then it's settled. Just having read all of the comments made, I'm happy to see that there is somewhat of a consensus here- along the lines of what you yourself said: "I wouldn't even consider nootropics until you're already getting plenty of sleep, eating well, exercising regularly, and not using too much caffeine or alcohol" - I don't get a lot of sleep (haven't been getting it for the last 6 or so years, averaging in at 5-6 hours/day), my eating habits have been unhealthy since my childhood, I never exercise (I'm extremely thin despite of that), and I have been drinking British/Indian tea (with lots of sugar and milk) probably in what's considered an 'excess amount' since my earliest memory (but no alcohol, weed, or Halo :)).

I'll try my darnedest in the forthcoming semester to have better sleeping/eating/exercising habits. Thank you everyone for taking the time to reply. (I was thinking to add a few more details to my questions and replies that I think are unique in my case, i.e., I hail from a third-world country, the first time I attended school was in America at the age of 12, and I have severe social anxiety, which, very strangely, I trace back to having conflicts in living in a multi-cultural family - but I decided not to add these details, since it would make for a disheveled, disorderly discussion). Thanks again everyone. :)